/*
 * Licensed to Crate under one or more contributor license agreements.
 * See the NOTICE file distributed with this work for additional
 * information regarding copyright ownership.  Crate licenses this file
 * to you under the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.  You may
 * obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied.  See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * However, if you have executed another commercial license agreement
 * with Crate these terms will supersede the license and you may use the
 * software solely pursuant to the terms of the relevant commercial
 * agreement.
 */

package io.crate.expression.reference.information;

import io.crate.Version;
import io.crate.metadata.table.StoredTable;

import javax.annotation.Nullable;

public final class TableExpressions {

    @Nullable
    public static <TRow> Version getVersion(TRow row, Version.Property property) {
        Version version = null;
        if (row instanceof StoredTable) {
            StoredTable storedTable = (StoredTable) row;
            if (property == Version.Property.CREATED) {
                version = storedTable.versionCreated();
            } else {
                version = storedTable.versionUpgraded();
            }
        }
        return version;
    }
}
